a)|x-2|>x+1
b)|2x-5|≤x+1
c)|x+1|-|2x+5|=-5
d)|x+3|-|2x-5|=1
giúp mình 4 con này với ạ

a) \(\frac{2}{x-1}\)≤\(\frac{5}{2x-1}\)
b)\(\frac{2x-5}{2-x}\)≥-1
c)\(\frac{\left(x+1\right)\left(x+2\right)}{-x+3}\)>0
d) \(\frac{2x-5}{2-x}\)+x≥0
e)\(\frac{2x+3}{x-1}\)≤x+1